class_docstr: Base class for a trainable model
docstr: train the model
docstr_tok: ["train","the","model"]
code: def train(self, *args, **kwargs):
      """train the model"""
      raise NotImplementedError
  
file_path: nlp-architect/nlp_architect/models/__init__.py
imports: import logging
  from abc import ABC
label_desc: Use image node_id 3 for calling the TrainableModel obj's underlying member method code with example usage: obj.train() without return types